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<head><meta charset="utf-8"><title>Adding warnings for `RUSTC_LOG=debug` with debug=false · t-compiler · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/index.html">t-compiler</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Adding.20warnings.20for.20.60RUSTC_LOG.3Ddebug.60.20with.20debug.3Dfalse.html">Adding warnings for `RUSTC_LOG=debug` with debug=false</a></h3>

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<a name="212377018"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/Adding%20warnings%20for%20%60RUSTC_LOG%3Ddebug%60%20with%20debug%3Dfalse/near/212377018" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Joshua Nelson <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Adding.20warnings.20for.20.60RUSTC_LOG.3Ddebug.60.20with.20debug.3Dfalse.html#212377018">(Oct 06 2020 at 01:57)</a>:</h4>
<p>Just wanted to show off the pretty diagnostics :) <a href="https://github.com/tokio-rs/tracing/pull/990#discussion_r499962957">https://github.com/tokio-rs/tracing/pull/990#discussion_r499962957</a></p>



<a name="212377164"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/Adding%20warnings%20for%20%60RUSTC_LOG%3Ddebug%60%20with%20debug%3Dfalse/near/212377164" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Joshua Nelson <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Adding.20warnings.20for.20.60RUSTC_LOG.3Ddebug.60.20with.20debug.3Dfalse.html#212377164">(Oct 06 2020 at 02:00)</a>:</h4>
<p>cc <span class="user-mention" data-user-id="307537">@Camelid</span></p>



<a name="212492409"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/Adding%20warnings%20for%20%60RUSTC_LOG%3Ddebug%60%20with%20debug%3Dfalse/near/212492409" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Noah Lev <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Adding.20warnings.20for.20.60RUSTC_LOG.3Ddebug.60.20with.20debug.3Dfalse.html#212492409">(Oct 06 2020 at 22:09)</a>:</h4>
<p>Oh, is that what rustc uses for logging?</p>



<a name="212492447"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/Adding%20warnings%20for%20%60RUSTC_LOG%3Ddebug%60%20with%20debug%3Dfalse/near/212492447" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Joshua Nelson <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Adding.20warnings.20for.20.60RUSTC_LOG.3Ddebug.60.20with.20debug.3Dfalse.html#212492447">(Oct 06 2020 at 22:10)</a>:</h4>
<p>yup, it's different from RUSTDOC_LOG</p>



<a name="212492502"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/Adding%20warnings%20for%20%60RUSTC_LOG%3Ddebug%60%20with%20debug%3Dfalse/near/212492502" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Joshua Nelson <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/Adding.20warnings.20for.20.60RUSTC_LOG.3Ddebug.60.20with.20debug.3Dfalse.html#212492502">(Oct 06 2020 at 22:10)</a>:</h4>
<p>but this will warn for both</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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